Car-wheel.



- Patented Aug. I2, |902. M. T. DAVIS, .lm

GAB WHEEL (Application ledMay 19, 1902.)

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SPECIFICATION forming part of Letters Patent No. 706,906, dated August12, 1902. Application led May 19, 1902. Serial No. 107,986. (No model.)

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Be it known that I, MADISON THENTON DAVIS, Jr., acit'izen of the UnitedStates, residing at Charleston, in the county of Kanawha and StateofNVest Virginia, have made certain new and useful'Improvements in Oar-Wheels, of which the following is a specification.

My invention is an improvement in carwlieels, and particularly in Wheelsdesigned for use in mines, and relates especially to the means forlubricating the said wheels, to which end the invention consists incertain novel constructions and combinations of parts, as will behereinafter described and claimed.

In the drawings, Figure l is an elevation of the inner side of acar-wheel embodying my invention. Fig. 2 is a vertical section thereofon about line 2 2 of Fig. l. Fig. 3 is a detail section on about line 3Bof Fig. 2. Fig. l is a detail perspective View of the perforatedtubular bushing. Fig. 5 is a detail elevation of the inner end of thehub of the Wheel, the lubricating bushing being removed. Fig. 6 is adetail section on about line 6 6 of Fig. 5, and Fig. 7 is a detailsection illustrating the construction for permitting the filling of thelubricating-chamber.

The wheel A has its hub B formed with an annular chamber O for thelubricant, ribs or iianges C being arranged to project into said chamberfrom the outer side thereof to agitate the oil or other lubricant, asdesired. At its opposite ends the hub is provided in its outer faceswith rabbets D and E, the outer rabbet D being in the form of an annulargroove to receive the nut for securing the bushing presently described,While the rabbet E at the inner end of the hub has a [lat side F, whichcoincides with a flat side on the end flange of lillelubricating-bushing and prevents the latter from turning. The rabbet E,in addition to receiving the head of the tubular bushing, also providesa shoulder G,against which the said head seats, said shoulder beingafforded by the inwardly-projecting iiange G, formed in the hub, asshown in Figs. 2, 5, and This iiange G is provided at intervals with thenotches g, which extend from the inner to the outer face of the saidflange and afford passages for the lubricating material to the openingsin the lubricating-bushing, whereby the lubricant is supplied to the eX-treme inner end of the wheel.

The tubular bushing H is provided with numerous perforations h along itsinner portion, is Ithreaded at one end i to receive the nut I, has atits opposite end a head or iiange J, and is provided near its headed endwith the perforations K, whose inner ends open Within the bushing closeto the inner end thereof, while the outer ends ofthe perforations K openWithin the iiange G', in register with the notches g, produced in theinner edge thereof. It will be understood that it is important toprovide for lubricating the wheel at the extreme inner end thereof, andthis I accomplish by the notched construction of the stop-iiange G' andby perforating the tubular lubricating-bushing in register with saidnotches, said perforations extending in position to discharge thelubricant at the inner end of the wheel. 'I thus combine the devices tosecure the stopping of the bushing in the desired positon for thedelivery of the lubricating material at the inner end of the wheel, asdesired. The nut I iits on the threaded end i of the lubricatingbushingand seats in the rabbet or groove D in the outer end of the hub, thuspresenting a smooth surface at the outer end ofthe hub. It will also benoticed that the inner end of the lubricating-bushing coincides with andforms a flush iinish at the inner end of the hub.

A cap L may be itted on the outer end of the hub, and means may beprovided at N for supplying the lubricating material to the annularchamber of the hub whenever occasion requires.

It will be noticed the tubular bushing can be readily removed andanother inserted when the parts are worn.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. The improvement in Wheels herein described, comprising the hub havingan annular chamber for the lubricant, and provided` in its outer endwith a rabbet for the nut and at its inner end With a rabbetnon-circular in cross-section, with a stop-ifiangeat the inner end ofthe rabbet and provided in its in- ICO ner edge with notches for thepassage.l of the lubricant, the perforated tubular bushing provided atits middle portion With perforations for the passage of thelubricant,threaded at its outer end to receive the securing-nut` andprovided at its inner end with a head to fit in the rabbet at the innerend of the hub and having adjacent to said head perforations registeringat their outer ends with the notches in the stop-flange of the hub andopening at their inner ends adjacent to the inner end of thelubricating-bushing, and the nut on the threaded end of thelubricating-bushing, substantially as set forth.

2. The combination with the hub having the chamber for the lubricant,and provided at its inner end With an inwardly-projecting flange notchedin its inner edge, and the lubricating-bushing having at its inner end ahead abutting said flange and provided adjacent to said head withperforations which register at their outer ends with the notches in theflange of the hub, and discharge at their inner ends adjacent to theinner end of the bushing, substantially as set forth.

3. The combination with the hub provided in its inner side With a rabbetfor the head of the bushing, said rabbet having a non-circular portionand at its inner side a stoplange provided in its inner edge withnotches, and the lubricating-bushing provided at its inner end with ahead to lit the rabbet in the hub and having adjacent to said headperforations which register at their outer ends with the notches in thestop-flange and open at their inner ends adjacent to the inner end ofthe lubricating-bushing, substantially as set forth.

MADISON T. DAVIS, JR.

Witnesses:

MADISON T. DAVIS, ENOCH CARVER.

